public override void generate(RGBA_Bytes[] span, int spanIndex, int x, int y, int len)
{
ImageBuffer SourceRenderingBuffer = (ImageBuffer)GetImageBufferAccessor().SourceImage;
if (SourceRenderingBuffer.BitDepth != 24)
{
throw new NotSupportedException("The source is expected to be 32 bit.");
}
ISpanInterpolator spanInterpolator = interpolator();
spanInterpolator.begin(x + filter_dx_dbl(), y + filter_dy_dbl(), len);
int offset;
byte[] fg_ptr = SourceRenderingBuffer.GetBuffer(out offset);
do
{
int x_hr;
int y_hr;
spanInterpolator.coordinates(out x_hr, out y_hr);
int x_lr = x_hr >> (int)image_subpixel_scale_e.image_subpixel_shift;
int y_lr = y_hr >> (int)image_subpixel_scale_e.image_subpixel_shift;
int bufferIndex;
bufferIndex = SourceRenderingBuffer.GetBufferOffsetXY(x_lr, y_lr);
RGBA_Bytes color;
color.blue = fg_ptr[bufferIndex++];
color.green = fg_ptr[bufferIndex++];
color.red = fg_ptr[bufferIndex++];
color.alpha = 255;
span[spanIndex] = color;
spanIndex++;
spanInterpolator.Next();
} while (--len != 0);
}
//--------------------------------------------------------------------
public void generate(Color[] span, int spanIndex, int x, int y, int len)
{
int dd = m_d2 - m_d1;
if (dd < 1)
{
dd = 1;
}
m_interpolator.begin(x + 0.5, y + 0.5, len);
do
{
m_interpolator.coordinates(out x, out y);
int d = m_gradient_function.calculate(x >> downscale_shift,
y >> downscale_shift, m_d2);
d = ((d - m_d1) * (int)m_color_function.size()) / dd;
if (d < 0)
{
d = 0;
}
if (d >= (int)m_color_function.size())
{
d = m_color_function.size() - 1;
}
span[spanIndex++] = m_color_function[d];
m_interpolator.Next();
}while (--len != 0);
}
public override void generate(RGBA_Bytes[] span, int spanIndex, int x, int y, int len)
{
ImageBuffer SourceRenderingBuffer = (ImageBuffer)GetImageBufferAccessor().SourceImage;
int bytesBetweenPixelsInclusive = SourceRenderingBuffer.GetBytesBetweenPixelsInclusive();
if (SourceRenderingBuffer.BitDepth != 8)
{
throw new NotSupportedException("The source is expected to be 32 bit.");
}
ISpanInterpolator spanInterpolator = interpolator();
spanInterpolator.begin(x + filter_dx_dbl(), y + filter_dy_dbl(), len);
int x_hr;
int y_hr;
spanInterpolator.coordinates(out x_hr, out y_hr);
int x_lr = x_hr >> (int)image_subpixel_scale_e.image_subpixel_shift;
int y_lr = y_hr >> (int)image_subpixel_scale_e.image_subpixel_shift;
int bufferIndex;
bufferIndex = SourceRenderingBuffer.GetBufferOffsetXY(x_lr, y_lr);
byte[] fg_ptr = SourceRenderingBuffer.GetBuffer();
#if USE_UNSAFE_CODE
unsafe
{
fixed(byte *pSource = fg_ptr)
{
do
{
span[spanIndex].red = pSource[bufferIndex];
span[spanIndex].green = pSource[bufferIndex];
span[spanIndex].blue = pSource[bufferIndex];
span[spanIndex].alpha = 255;
spanIndex++;
bufferIndex += bytesBetweenPixelsInclusive;
} while (--len != 0);
}
}
#else
do
{
throw new Exception("this code is for 32 bit");
RGBA_Bytes color;
color.blue = fg_ptr[bufferIndex++];
color.green = fg_ptr[bufferIndex++];
color.red = fg_ptr[bufferIndex++];
color.alpha = fg_ptr[bufferIndex++];
span[spanIndex++] = color;
} while (--len != 0);
#endif
}
public override void generate(Color[] span, int spanIndex, int x, int y, int len)
{
ImageBuffer SourceRenderingBuffer = (ImageBuffer)GetImageBufferAccessor().SourceImage;
if (SourceRenderingBuffer.BitDepth != 24)
{
throw new NotSupportedException("The source is expected to be 32 bit.");
}
ISpanInterpolator spanInterpolator = interpolator();
spanInterpolator.begin(x + filter_dx_dbl(), y + filter_dy_dbl(), len);
int x_hr;
int y_hr;
spanInterpolator.coordinates(out x_hr, out y_hr);
int x_lr = x_hr >> (int)image_subpixel_scale_e.image_subpixel_shift;
int y_lr = y_hr >> (int)image_subpixel_scale_e.image_subpixel_shift;
int bufferIndex;
bufferIndex = SourceRenderingBuffer.GetBufferOffsetXY(x_lr, y_lr);
byte[] fg_ptr = SourceRenderingBuffer.GetBuffer();
#if USE_UNSAFE_CODE
unsafe
{
fixed(byte *pSource = fg_ptr)
{
do
{
span[spanIndex++] = *(RGBA_Bytes *)&(pSource[bufferIndex]);
bufferIndex += 4;
} while (--len != 0);
}
}
#else
Color color = Color.White;
do
{
color.blue = fg_ptr[bufferIndex++];
color.green = fg_ptr[bufferIndex++];
color.red = fg_ptr[bufferIndex++];
span[spanIndex++] = color;
} while (--len != 0);
#endif
}
public override void generate(RGBA_Bytes[] span, int spanIndex, int x, int y, int len)
{
ISpanInterpolator spanInterpolator = base.interpolator();
spanInterpolator.begin(x + base.filter_dx_dbl(), y + base.filter_dy_dbl(), len);
int[] fg = new int[3];
byte[] fg_ptr;
int[] weightArray = filter().weight_array();
int diameter = (int)base.filter().diameter();
int filter_scale = diameter << (int)image_subpixel_scale_e.image_subpixel_shift;
int[] weight_array = weightArray;
do
{
int rx;
int ry;
int rx_inv = (int)image_subpixel_scale_e.image_subpixel_scale;
int ry_inv = (int)image_subpixel_scale_e.image_subpixel_scale;
spanInterpolator.coordinates(out x, out y);
spanInterpolator.local_scale(out rx, out ry);
base.adjust_scale(ref rx, ref ry);
rx_inv = (int)image_subpixel_scale_e.image_subpixel_scale * (int)image_subpixel_scale_e.image_subpixel_scale / rx;
ry_inv = (int)image_subpixel_scale_e.image_subpixel_scale * (int)image_subpixel_scale_e.image_subpixel_scale / ry;
int radius_x = (diameter * rx) >> 1;
int radius_y = (diameter * ry) >> 1;
int len_x_lr =
(diameter * rx + (int)image_subpixel_scale_e.image_subpixel_mask) >>
(int)(int)image_subpixel_scale_e.image_subpixel_shift;
x += base.filter_dx_int() - radius_x;
y += base.filter_dy_int() - radius_y;
fg[0] = fg[1] = fg[2] = (int)image_filter_scale_e.image_filter_scale / 2;
int y_lr = y >> (int)(int)image_subpixel_scale_e.image_subpixel_shift;
int y_hr = (((int)image_subpixel_scale_e.image_subpixel_mask - (y & (int)image_subpixel_scale_e.image_subpixel_mask)) *
ry_inv) >> (int)(int)image_subpixel_scale_e.image_subpixel_shift;
int total_weight = 0;
int x_lr = x >> (int)(int)image_subpixel_scale_e.image_subpixel_shift;
int x_hr = (((int)image_subpixel_scale_e.image_subpixel_mask - (x & (int)image_subpixel_scale_e.image_subpixel_mask)) *
rx_inv) >> (int)(int)image_subpixel_scale_e.image_subpixel_shift;
int x_hr2 = x_hr;
int sourceIndex;
fg_ptr = base.GetImageBufferAccessor().span(x_lr, y_lr, len_x_lr, out sourceIndex);
for (; ;)
{
int weight_y = weight_array[y_hr];
x_hr = x_hr2;
for (; ;)
{
int weight = (weight_y * weight_array[x_hr] +
(int)image_filter_scale_e.image_filter_scale / 2) >>
downscale_shift;
fg[0] += fg_ptr[sourceIndex + ImageBuffer.OrderR] * weight;
fg[1] += fg_ptr[sourceIndex + ImageBuffer.OrderG] * weight;
fg[2] += fg_ptr[sourceIndex + ImageBuffer.OrderB] * weight;
total_weight += weight;
x_hr += rx_inv;
if (x_hr >= filter_scale)
{
break;
}
fg_ptr = base.GetImageBufferAccessor().next_x(out sourceIndex);
}
y_hr += ry_inv;
if (y_hr >= filter_scale)
{
break;
}
fg_ptr = base.GetImageBufferAccessor().next_y(out sourceIndex);
}
fg[0] /= total_weight;
fg[1] /= total_weight;
fg[2] /= total_weight;
if (fg[0] < 0)
{
fg[0] = 0;
}
if (fg[1] < 0)
{
fg[1] = 0;
}
if (fg[2] < 0)
{
fg[2] = 0;
}
if (fg[0] > base_mask)
{
fg[0] = base_mask;
}
if (fg[1] > base_mask)
{
fg[1] = base_mask;
}
if (fg[2] > base_mask)
{
fg[2] = base_mask;
}
span[spanIndex].alpha = base_mask;
span[spanIndex].red = (byte)fg[0];
span[spanIndex].green = (byte)fg[1];
span[spanIndex].blue = (byte)fg[2];
spanIndex++;
interpolator().Next();
} while (--len != 0);
}
public override void generate(RGBA_Bytes[] span, int spanIndex, int x, int y, int len)
{
base.interpolator().begin(x + base.filter_dx_dbl(), y + base.filter_dy_dbl(), len);
int f_r, f_g, f_b;
byte[] fg_ptr;
int diameter = m_filter.diameter();
int start = m_filter.start();
int[] weight_array = m_filter.weight_array();
int x_count;
int weight_y;
ISpanInterpolator spanInterpolator = base.interpolator();
do
{
spanInterpolator.coordinates(out x, out y);
x -= base.filter_dx_int();
y -= base.filter_dy_int();
int x_hr = x;
int y_hr = y;
int x_lr = x_hr >> (int)image_subpixel_scale_e.image_subpixel_shift;
int y_lr = y_hr >> (int)image_subpixel_scale_e.image_subpixel_shift;
f_b = f_g = f_r = (int)image_filter_scale_e.image_filter_scale / 2;
int x_fract = x_hr & (int)image_subpixel_scale_e.image_subpixel_mask;
int y_count = diameter;
y_hr = (int)image_subpixel_scale_e.image_subpixel_mask - (y_hr & (int)image_subpixel_scale_e.image_subpixel_mask);
int bufferIndex;
fg_ptr = GetImageBufferAccessor().span(x_lr + start, y_lr + start, diameter, out bufferIndex);
for (; ;)
{
x_count = (int)diameter;
weight_y = weight_array[y_hr];
x_hr = (int)image_subpixel_scale_e.image_subpixel_mask - x_fract;
for (; ;)
{
int weight = (weight_y * weight_array[x_hr] +
(int)image_filter_scale_e.image_filter_scale / 2) >>
(int)image_filter_scale_e.image_filter_shift;
f_b += weight * fg_ptr[bufferIndex + ImageBuffer.OrderR];
f_g += weight * fg_ptr[bufferIndex + ImageBuffer.OrderG];
f_r += weight * fg_ptr[bufferIndex + ImageBuffer.OrderB];
if (--x_count == 0)
{
break;
}
x_hr += (int)image_subpixel_scale_e.image_subpixel_scale;
GetImageBufferAccessor().next_x(out bufferIndex);
}
if (--y_count == 0)
{
break;
}
y_hr += (int)image_subpixel_scale_e.image_subpixel_scale;
fg_ptr = GetImageBufferAccessor().next_y(out bufferIndex);
}
f_b >>= (int)image_filter_scale_e.image_filter_shift;
f_g >>= (int)image_filter_scale_e.image_filter_shift;
f_r >>= (int)image_filter_scale_e.image_filter_shift;
unchecked
{
if ((uint)f_b > base_mask)
{
if (f_b < 0)
{
f_b = 0;
}
if (f_b > base_mask)
{
f_b = (int)base_mask;
}
}
if ((uint)f_g > base_mask)
{
if (f_g < 0)
{
f_g = 0;
}
if (f_g > base_mask)
{
f_g = (int)base_mask;
}
}
if ((uint)f_r > base_mask)
{
if (f_r < 0)
{
f_r = 0;
}
if (f_r > base_mask)
{
f_r = (int)base_mask;
}
}
}
span[spanIndex].alpha = (byte)base_mask;
span[spanIndex].red = (byte)f_b;
span[spanIndex].green = (byte)f_g;
span[spanIndex].blue = (byte)f_r;
spanIndex++;
spanInterpolator.Next();
} while (--len != 0);
}
public override void generate(RGBA_Bytes[] span, int spanIndex, int x, int y, int len)
{
base.interpolator().begin(x + base.filter_dx_dbl(), y + base.filter_dy_dbl(), len);
int[] accumulatedColor = new int[3];
int sourceAlpha;
int back_r = m_OutsideSourceColor.red;
int back_g = m_OutsideSourceColor.green;
int back_b = m_OutsideSourceColor.blue;
int back_a = m_OutsideSourceColor.alpha;
int bufferIndex;
byte[] fg_ptr;
ImageBuffer SourceRenderingBuffer = (ImageBuffer)base.GetImageBufferAccessor().SourceImage;
int maxx = (int)SourceRenderingBuffer.Width - 1;
int maxy = (int)SourceRenderingBuffer.Height - 1;
ISpanInterpolator spanInterpolator = base.interpolator();
unchecked
{
do
{
int x_hr;
int y_hr;
spanInterpolator.coordinates(out x_hr, out y_hr);
x_hr -= base.filter_dx_int();
y_hr -= base.filter_dy_int();
int x_lr = x_hr >> (int)image_subpixel_scale_e.image_subpixel_shift;
int y_lr = y_hr >> (int)image_subpixel_scale_e.image_subpixel_shift;
int weight;
if (x_lr >= 0 && y_lr >= 0 &&
x_lr < maxx && y_lr < maxy)
{
accumulatedColor[0] =
accumulatedColor[1] =
accumulatedColor[2] = (int)image_subpixel_scale_e.image_subpixel_scale * (int)image_subpixel_scale_e.image_subpixel_scale / 2;
x_hr &= (int)image_subpixel_scale_e.image_subpixel_mask;
y_hr &= (int)image_subpixel_scale_e.image_subpixel_mask;
fg_ptr = SourceRenderingBuffer.GetPixelPointerXY(x_lr, y_lr, out bufferIndex);
weight = (((int)image_subpixel_scale_e.image_subpixel_scale - x_hr) *
((int)image_subpixel_scale_e.image_subpixel_scale - y_hr));
accumulatedColor[0] += weight * fg_ptr[bufferIndex + ImageBuffer.OrderR];
accumulatedColor[1] += weight * fg_ptr[bufferIndex + ImageBuffer.OrderG];
accumulatedColor[2] += weight * fg_ptr[bufferIndex + ImageBuffer.OrderB];
bufferIndex += 3;
weight = (x_hr * ((int)image_subpixel_scale_e.image_subpixel_scale - y_hr));
accumulatedColor[0] += weight * fg_ptr[bufferIndex + ImageBuffer.OrderR];
accumulatedColor[1] += weight * fg_ptr[bufferIndex + ImageBuffer.OrderG];
accumulatedColor[2] += weight * fg_ptr[bufferIndex + ImageBuffer.OrderB];
y_lr++;
fg_ptr = SourceRenderingBuffer.GetPixelPointerXY(x_lr, y_lr, out bufferIndex);
weight = (((int)image_subpixel_scale_e.image_subpixel_scale - x_hr) * y_hr);
accumulatedColor[0] += weight * fg_ptr[bufferIndex + ImageBuffer.OrderR];
accumulatedColor[1] += weight * fg_ptr[bufferIndex + ImageBuffer.OrderG];
accumulatedColor[2] += weight * fg_ptr[bufferIndex + ImageBuffer.OrderB];
bufferIndex += 3;
weight = (x_hr * y_hr);
accumulatedColor[0] += weight * fg_ptr[bufferIndex + ImageBuffer.OrderR];
accumulatedColor[1] += weight * fg_ptr[bufferIndex + ImageBuffer.OrderG];
accumulatedColor[2] += weight * fg_ptr[bufferIndex + ImageBuffer.OrderB];
accumulatedColor[0] >>= (int)image_subpixel_scale_e.image_subpixel_shift * 2;
accumulatedColor[1] >>= (int)image_subpixel_scale_e.image_subpixel_shift * 2;
accumulatedColor[2] >>= (int)image_subpixel_scale_e.image_subpixel_shift * 2;
sourceAlpha = base_mask;
}
else
{
if (x_lr < -1 || y_lr < -1 ||
x_lr > maxx || y_lr > maxy)
{
accumulatedColor[0] = back_r;
accumulatedColor[1] = back_g;
accumulatedColor[2] = back_b;
sourceAlpha = back_a;
}
else
{
accumulatedColor[0] =
accumulatedColor[1] =
accumulatedColor[2] = (int)image_subpixel_scale_e.image_subpixel_scale * (int)image_subpixel_scale_e.image_subpixel_scale / 2;
sourceAlpha = (int)image_subpixel_scale_e.image_subpixel_scale * (int)image_subpixel_scale_e.image_subpixel_scale / 2;
x_hr &= (int)image_subpixel_scale_e.image_subpixel_mask;
y_hr &= (int)image_subpixel_scale_e.image_subpixel_mask;
weight = (((int)image_subpixel_scale_e.image_subpixel_scale - x_hr) *
((int)image_subpixel_scale_e.image_subpixel_scale - y_hr));
BlendInFilterPixel(accumulatedColor, ref sourceAlpha, back_r, back_g, back_b, back_a, SourceRenderingBuffer, maxx, maxy, x_lr, y_lr, weight);
x_lr++;
weight = (x_hr * ((int)image_subpixel_scale_e.image_subpixel_scale - y_hr));
BlendInFilterPixel(accumulatedColor, ref sourceAlpha, back_r, back_g, back_b, back_a, SourceRenderingBuffer, maxx, maxy, x_lr, y_lr, weight);
x_lr--;
y_lr++;
weight = (((int)image_subpixel_scale_e.image_subpixel_scale - x_hr) * y_hr);
BlendInFilterPixel(accumulatedColor, ref sourceAlpha, back_r, back_g, back_b, back_a, SourceRenderingBuffer, maxx, maxy, x_lr, y_lr, weight);
x_lr++;
weight = (x_hr * y_hr);
BlendInFilterPixel(accumulatedColor, ref sourceAlpha, back_r, back_g, back_b, back_a, SourceRenderingBuffer, maxx, maxy, x_lr, y_lr, weight);
accumulatedColor[0] >>= (int)image_subpixel_scale_e.image_subpixel_shift * 2;
accumulatedColor[1] >>= (int)image_subpixel_scale_e.image_subpixel_shift * 2;
accumulatedColor[2] >>= (int)image_subpixel_scale_e.image_subpixel_shift * 2;
sourceAlpha >>= (int)image_subpixel_scale_e.image_subpixel_shift * 2;
}
}
span[spanIndex].red = (byte)accumulatedColor[0];
span[spanIndex].green = (byte)accumulatedColor[1];
span[spanIndex].blue = (byte)accumulatedColor[2];
span[spanIndex].alpha = (byte)sourceAlpha;
spanIndex++;
spanInterpolator.Next();
} while (--len != 0);
}
}
public override void generate(RGBA_Bytes[] span, int spanIndex, int x, int y, int len)
{
base.interpolator().begin(x + base.filter_dx_dbl(), y + base.filter_dy_dbl(), len);
ImageBuffer SourceRenderingBuffer = (ImageBuffer)base.GetImageBufferAccessor().SourceImage;
ISpanInterpolator spanInterpolator = base.interpolator();
int bufferIndex;
byte[] fg_ptr = SourceRenderingBuffer.GetBuffer(out bufferIndex);
unchecked
{
do
{
int tempR;
int tempG;
int tempB;
int x_hr;
int y_hr;
spanInterpolator.coordinates(out x_hr, out y_hr);
x_hr -= base.filter_dx_int();
y_hr -= base.filter_dy_int();
int x_lr = x_hr >> (int)image_subpixel_scale_e.image_subpixel_shift;
int y_lr = y_hr >> (int)image_subpixel_scale_e.image_subpixel_shift;
int weight;
tempR =
tempG =
tempB = (int)image_subpixel_scale_e.image_subpixel_scale * (int)image_subpixel_scale_e.image_subpixel_scale / 2;
x_hr &= (int)image_subpixel_scale_e.image_subpixel_mask;
y_hr &= (int)image_subpixel_scale_e.image_subpixel_mask;
bufferIndex = SourceRenderingBuffer.GetBufferOffsetXY(x_lr, y_lr);
weight = (((int)image_subpixel_scale_e.image_subpixel_scale - x_hr) *
((int)image_subpixel_scale_e.image_subpixel_scale - y_hr));
tempR += weight * fg_ptr[bufferIndex + ImageBuffer.OrderR];
tempG += weight * fg_ptr[bufferIndex + ImageBuffer.OrderG];
tempB += weight * fg_ptr[bufferIndex + ImageBuffer.OrderB];
bufferIndex += 3;
weight = (x_hr * ((int)image_subpixel_scale_e.image_subpixel_scale - y_hr));
tempR += weight * fg_ptr[bufferIndex + ImageBuffer.OrderR];
tempG += weight * fg_ptr[bufferIndex + ImageBuffer.OrderG];
tempB += weight * fg_ptr[bufferIndex + ImageBuffer.OrderB];
y_lr++;
bufferIndex = SourceRenderingBuffer.GetBufferOffsetXY(x_lr, y_lr);
weight = (((int)image_subpixel_scale_e.image_subpixel_scale - x_hr) * y_hr);
tempR += weight * fg_ptr[bufferIndex + ImageBuffer.OrderR];
tempG += weight * fg_ptr[bufferIndex + ImageBuffer.OrderG];
tempB += weight * fg_ptr[bufferIndex + ImageBuffer.OrderB];
bufferIndex += 3;
weight = (x_hr * y_hr);
tempR += weight * fg_ptr[bufferIndex + ImageBuffer.OrderR];
tempG += weight * fg_ptr[bufferIndex + ImageBuffer.OrderG];
tempB += weight * fg_ptr[bufferIndex + ImageBuffer.OrderB];
tempR >>= (int)image_subpixel_scale_e.image_subpixel_shift * 2;
tempG >>= (int)image_subpixel_scale_e.image_subpixel_shift * 2;
tempB >>= (int)image_subpixel_scale_e.image_subpixel_shift * 2;
RGBA_Bytes color;
color.red = (byte)tempR;
color.green = (byte)tempG;
color.blue = (byte)tempB;
color.alpha = 255;
span[spanIndex] = color;
spanIndex++;
spanInterpolator.Next();
} while (--len != 0);
}
}
//----------------------------------------------------------------
public void coordinates(out int x, out int y)
{
m_interpolator.coordinates(out x, out y);
}